I'm in the market for a M3P. this would be my first one. Im a car enthusiast and all i really care about is performance and reliability. I would also like to spend my money wisely and get the best bang for the buck. Ive done some research but not too much. I live in Illinois where we get cold winters. Do i definitely need a 21 with the heat pump? this would be my daily commute vehicle. I only travel 12 miles one way to work, id also be driving it around town for errands and such. Any opinions?